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Why don't rear seat speakers work with aftermarket head unit?

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Old 02-23-2004, 04:21 AM
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Default Why don't rear seat speakers work with aftermarket head unit?

Just kind of curious why exactly the speakers adjacent to the rear seats don't work with an aftermarket head unti installed. Just put a Panasonic CQ-DFX983u in my SS last night and now only have the front and hatch speakers working. Not all that concerned, in the market for some Focals, plus have a Solobaric S10D to throw in the back. Just wondering why, would assume maybe it has to do with the extra wiring harness you unplug from the stock stereo, but don't plug into an aftermarket one?
Old 02-23-2004, 09:05 PM
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the other harness is only for the steering wheel controls, the aftermarket radio only has 4 channels, thats why all the speakers dont work
Old 02-27-2004, 04:30 PM
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Can you wire the fronts and the rear hatch speakers on 2 channels and then the 6.5" subs on the other 2 channels?
Old 02-28-2004, 09:14 AM
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Originally Posted by Ryan Boechler
Can you wire the fronts and the rear hatch speakers on 2 channels and then the 6.5" subs on the other 2 channels?
no you dont wanan run that kind of load on a deck's amp, it will kill it. Your rear subs Should work. Did you use the wiring harness to the car's harness? Try cranking the bass a bit...
Old 02-28-2004, 04:34 PM
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I haven't installed it yet. I'm just making sure it will work before I start hacking up the dash.
Old 03-02-2004, 01:06 PM
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Mine work....
Old 03-03-2004, 11:53 AM
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Heh...kinda funny...mine never worked until I installed an aftermarket stereo...then they magically started working.
Old 03-03-2004, 02:32 PM
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I was always told that two two speakers were actually subs and just about every aftermarket radio had a 4 chan output.

In other works, peeps told me to get an amp and connect the two middle subs directly to the amp and the other 4 regular speakers would work off of the radio itself. I'm not a stero guy, I am confusing myself here.
Old 03-03-2004, 04:27 PM
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i got a after market head unit and i only got the 2 fronts and the 2 hatch the middle subs dont work at all
Old 03-03-2004, 05:32 PM
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If your subs arent working you either have the bass turned way down or the radio isnt hooked up correctly... You NEED to use the aftermarket harness to hook it up, if youve hooked it up otherwise or the shop you brought it to hooked it up otherwise the amp wont work.

Joe youre right about aftermarket radios being 4 channel however, the 4 channels run to the amp which is 6 channels. Theres no reason to seperately power the subs.
Old 03-25-2004, 03:20 PM
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i have an aftermarket head unit and all 6 speakers work fine, however i also have 2 10in subs in the back so i would like to if possible, have the 6.5 speakers in the sail panal be full range instead of just having the lows go to them. what is the easiest way to accomplish this?
Old 03-25-2004, 10:04 PM
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Originally Posted by evergreen0077
i have an aftermarket head unit and all 6 speakers work fine, however i also have 2 10in subs in the back so i would like to if possible, have the 6.5 speakers in the sail panal be full range instead of just having the lows go to them. what is the easiest way to accomplish this?
Not gonna happen without a rewire. Those 2 channels are filtered for lows only at the amp, theres no external crossover on them. You can either A) bypass the monsoon and run 2 front and 2 NEW sail panel speakers off the deck, B) run an amp to a pair of NEW speakers there (waste of $). or C) remove the hatch speakers, put NEW 6.5s in the sail panels, and run those wires from the hatch speakers back to the sail panels (probably the best and easiest way)



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